Chunhui and Shangdeng, a happy mother and sonEnsure sleep, stick to exercise, and learn happilyis a small goal for the three years of middle school~Every week, I go to the seaside football field to play a game with good friendsBefore school was out, I saw the score in the DingTalk group, a big letter: C.It … Read more
The recently concluded Wuhan Nine Test was innovative and challenging, and the research exams in Wuhan never disappoint. Back in my senior year, I had to tackle these problems, but unfortunately, I am now a freshman. 😇 Of course, as a fan of final problem challenges, I still attempted this eighth question, which turned out … Read more
GESP Level 2 exercise, involving multiple conditions and nested loops, difficulty ★✮☆☆☆. luogu-b2081 Numbers Not Related to 7 Problem Requirements Problem Description A positive integer is considered related to 7 if it can be divided by 7, or if any digit in its decimal representation is 7. The task is to find the sum of … Read more